Heat sealing material and preparation method thereof

A heat-sealing and heat-insulating filler technology, which is applied in chemical instruments and methods, lamination auxiliary operations, lamination, etc., can solve the problems of insufficient resilience of heat-sealing materials, and achieve low equipment cost, strong process adaptability, and high The effect of performance and low-cost manufacturing

Active Publication Date: 2019-10-18
AEROSPACE INST OF ADVANCED MATERIALS & PROCESSING TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0008] The purpose of the present invention is to overcome the deficiencies of the prior art, to provide a new type of heat-sealing material and its preparation method, to solve the problem of insufficient resilience of the heat-sealing material, and to realize the heat-resistant, compressible, high-resilience heat-sealing material. Improve the comprehensive performance of elasticity and heat sealing, and provide high-performance elastic heat sealing materials for various industrial fields

Method used

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  • Heat sealing material and preparation method thereof
  • Heat sealing material and preparation method thereof
  • Heat sealing material and preparation method thereof

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preparation example Construction

[0052] In a second aspect, the present invention provides a method for preparing the aforementioned heat-sealing material, comprising the following steps:

[0053] (1) The step of providing the metal wire: the selected metal material is continuously drawn according to the wire drawing process to make the metal wire.

[0054] In this step, the metal material may be any one of stainless steel, copper alloy, nickel-based alloy, and titanium alloy. The wire drawing process may be any one of cold drawing, cutting and beam melting. The wire diameter of the metal wire is preferably 0.08 mm to 0.25 mm.

[0055] (2) The steps of skeleton weaving and forming: select the braiding tool with the same diameter as the round tube and the elastic tubular skeleton, and crochet the metal wire bundles composed of metal wires through the crochet needles of the braiding tool one by one and in a ring direction. In the process, each mesh of the previous circle is continuously crocheted, and the num...

Embodiment 1

[0073] The heat-sealing material provided in this embodiment includes an elastic tubular skeleton, an inner core made of heat-insulating filler inorganic fiber cotton filled inside the elastic tubular skeleton, and an outer layer made of heat-insulating cloth wrapped outside the elastic tubular skeleton . The elastic tubular skeleton is a circular tubular structure with meshes woven by wire hooks. The meshes are arc-shaped meshes with gradually narrowing open ends, which can be described as Ω-shaped.

[0074] The preparation method of this heat sealing material comprises the steps:

[0075] S1. Metal wire drawing: the metal material is selected as stainless steel, and it is cold-drawn to form a wire to prepare a stainless steel wire with a wire diameter of 0.08mm.

[0076] S2. Skeleton weaving forming: select the weaving tooling with a circular network tube diameter of 5mm, pass the stainless steel wire with a wire diameter of 0.08mm and 1 strand through the crochet needles of ...

Embodiment 2

[0082] The heat-sealing material provided by this embodiment is the same as that of Embodiment 1 in terms of macroscopic structure, including an elastic tubular skeleton, an inner core made of heat-insulating filler inorganic fiber cotton filled inside the elastic tubular The outer part of the insulation cloth. The elastic tubular skeleton is a circular tubular structure with meshes woven by wire hooks. The meshes are arc-shaped meshes with gradually narrowing open ends, which can be described as Ω-shaped.

[0083] The preparation method of this heat-sealing material is basically the same with the preparation method of embodiment 1, and difference is:

[0084] The metal wire bundle is 2 strands, and the weaving process adopts the one-time weaving method of the wire bundle, and a heat treatment step is also included between S3 and S4, and the heat treatment adopts annealing.

[0085] The elastic tubular framework in the heat-sealing material prepared by this preparation method...

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Abstract

The invention relates to a heat sealing material and a preparation method thereof. The heat sealing material comprises an elastic tubular framework, an inner core part composed of a heat insulation filler packed in the elastic tubular framework, and an outer layer part composed of a heat insulation cloth wrapping the outside of the elastic tubular framework, wherein the elastic tubular framework is of a circular tube type structure with meshes, and the circular tube type structure is formed by crocheting metal wires. The preparation method comprises the following steps: providing the metal wires, forming the framework through weaving, shaping the framework, packing the heat-insulating filler, and wrapping the heat-insulating cloth. The heat sealing material provided by the invention solvesthe problem of insufficient resilience of an existing heat sealing material, enhances comprehensive properties of temperature resistance, compressibility, high resilience, heat sealing and the like of the heat sealing material, and can provide a high-performance elastic heat sealing material for various fields.

Description

technical field [0001] The invention relates to the technical field of high-temperature-resistant heat-sealing materials, in particular to a heat-sealing material and a preparation method thereof. Background technique [0002] In the fields of aerospace, iron and steel metallurgy, high-temperature kiln, thermal power generation, petrochemical industry, engine and other fields, high-temperature heat-resistant heat-sealing materials can solve the technical problems of "heat leakage" such as gaps in many parts, parts butt joints, and gaps in rotating parts. It plays an important role in reducing consumption, production safety, and improving overall performance. [0003] The application documents with application publication numbers CN103600530A and CN108999979A are two invention patents on heat-sealing materials applied by our researchers based on the previous research results. The heat-sealing materials prepared by these existing processes have quite outstanding advantages, b...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B32B1/08B32B3/12B32B15/02B32B15/14B32B33/00B32B38/00
CPCB32B1/08B32B3/12B32B5/024B32B5/26B32B15/02B32B15/14B32B33/00B32B38/0036B32B2250/20B32B2262/103
Inventor 周玉贵李文静赵英民王子宁杨洁颖
Owner AEROSPACE INST OF ADVANCED MATERIALS & PROCESSING TECH
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